A client with open-angle glaucoma asks the nurse how long the prescribed eye drops will need to be used. Which response made by the nurse is accurate?
For long-term control of normal eye pressure.
Until a smaller angle can be restored.
For long-term control of pain and swelling.
Until the excess pressure is reduced.
The Correct Answer is A
Choice A rationale
For long-term control of normal eye pressure is the accurate response. Open-angle glaucoma is a chronic condition that requires ongoing treatment to maintain normal intraocular pressure and prevent further damage to the optic nerve. Eye drops are typically used for life to manage the condition.
Choice B rationale
Until a smaller angle can be restored is not accurate because open-angle glaucoma does not involve a change in the angle of the anterior chamber. The goal of treatment is to lower intraocular pressure, not to restore the angle.
Choice C rationale
For long-term control of pain and swelling is not accurate because open-angle glaucoma primarily involves increased intraocular pressure and optic nerve damage, not pain and swelling. The goal of treatment is to lower intraocular pressure.
Choice D rationale
Until the excess pressure is reduced is not accurate because open-angle glaucoma requires ongoing treatment to maintain normal intraocular pressure. Stopping treatment once pressure is reduced can lead to a recurrence of elevated pressure and further damage.
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Correct Answer is A
Explanation
Choice A rationale
Corneal abrasion is a contraindication for the use of ophthalmic ketorolac. Ketorolac is a nonsteroidal anti-inflammatory drug (NSAID) that can delay healing and increase the risk of further damage to the cornea.
Choice B rationale
Chemical burns are not a primary contraindication for ophthalmic ketorolac. However, the treatment of chemical burns typically involves other specific interventions, and the use of ketorolac should be carefully considered.
Choice C rationale
Radiation exposure is not a direct contraindication for the use of ophthalmic ketorolac. The medication is used to reduce inflammation and pain, which may be beneficial in managing symptoms related to radiation exposure.
Choice D rationale
A foreign body in the eye is not a primary contraindication for ophthalmic ketorolac. However, the foreign body should be removed, and the eye should be thoroughly examined before administering any medication.
Correct Answer is B
Explanation
Choice A rationale
An increase in B-lymphocytes and IgM is not how HIV suppresses the immune system. B-lymphocytes are responsible for producing antibodies, and IgM is a type of antibody. HIV primarily affects T-lymphocytes, specifically helper T-cells (CD4 cells), rather than B-lymphocytes.
Choice B rationale
The destruction of helper T-cells and CD4 cells is the primary mechanism by which HIV suppresses the immune system. HIV targets and infects these cells, leading to their depletion. Helper T-cells play a crucial role in coordinating the immune response, and their loss results in a weakened immune system, making the body more susceptible to infections and diseases.
Choice C rationale
A deficiency of cytotoxic T cells is not the primary mechanism by which HIV suppresses the immune system. Cytotoxic T cells (CD8 cells) are involved in directly killing infected cells, but the main impact of HIV is on helper T-cells (CD4 cells), which are essential for orchestrating the immune response.
Choice D rationale
The proliferation of suppressor T-cells is not how HIV suppresses the immune system. Suppressor T-cells (regulatory T cells) help regulate and control the immune response, but HIV primarily affects helper T-cells (CD4 cells), leading to their destruction and a weakened immune system.